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Приказ резултата 11-20 од 238
On the specific surface area of nanoporous materials
(Oxford : Pergamon-Elsevier Science Ltd, 2011)
A proper quantification of the specific surface area of nanoporous materials is necessary for a better understanding of the properties that are affected by the high surface-area-to-volume ratio of nanoporous metals, ...
Complexation of amidated pectin with poly(itaconic acid) as a polycarboxylic polymer model compound
(Elsevier Sci Ltd, Oxford, 2011)
Complexes based on amidated pectin (AP) and poly(itaconic acid) (PIA) were prepared by casting films from solutions of AP and PIA in different ratios with the pectin amount ranging from 10% to 90% by mass. The complexes ...
Antioxidative and immunomodulating activities of polysaccharide extracts of the medicinal mushrooms Agaricus bisporus, Agaricus brasiliensis, Ganoderma lucidum and Phellinus linteus
(Elsevier Sci Ltd, Oxford, 2011)
Partially purified polysaccharides were obtained from four medicinal mushroom species, Agaricus bisporus, Agaricus brasiliensis, Phellinus linteus and Ganoderma lucidum by hot water extraction, followed by ethanol ...
Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile
(Esg, Belgrade, 2011)
Oxygen reduction reaction (ORR) was studied on polycrystalline Pt and Au electrodes in 0.1 M HClO(4) solutions containing various amounts of acetonitrile (AcN). The state of the electrode surface was characterized by cyclic ...
The effect of pH on oxygen and hydrogen peroxide reduction on polycrystalline Pt electrode
(Oxford : Pergamon-Elsevier Science Ltd, 2011)
Oxygen reduction (ORR) and hydrogen peroxide reduction (HPRR) reactions were studied on polycrystalline Pt by the rotating disc electrode technique in sulphate solutions over the entire pH range. Initial potentials for ...
Ballistic transport through graphene nanostructures of velocity and potential barriers
(Iop Publishing Ltd, Bristol, 2011)
We investigate the electronic properties of graphene nanostructures when the Fermi velocity and the electrostatic potential vary in space. First, we consider the transmission T and conductance G through single and double ...
Oxygen reduction on polycrystalline Au modified by nanosized Pd islands
(Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 2011)
Oxygen reduction reaction was studied on polycrystalline gold, Au(poly), modified by nanosized palladium islands. Linear sweep voltammetry measurements were performed using rotating Au-disk electrode in oxygen saturated ...
Adsorption-desorption phase noise in RF MEMS/NEMS resonators
(10th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting, 2011)
In this paper the analysis is presented of the dependence of adsorption-desorption phase noise in MEMS/NEMS resonators of their resonant frequency, operating pressure and temperature. Results of the analysis are useful for ...
Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution
(Oxford : Pergamon-Elsevier Science Ltd, 2011)
Wear and corrosion behaviour of cold-rolled Ti-13Nb-13Zr alloy, with martensitic microstructure, and Ti-6Al-4V ELI alloy, in martensitic and two-phase (alpha + beta) microstructural conditions, was studied in a Ringer's ...
Semiquinol and phenol compounds from seven Senecio species
(Versita, Warsaw, 2011)
In this paper, examination of the aerial parts of seven Senecio species from Serbia and Montenegro is reported. Phytochemical investigation of Senecio erucifolius led to the isolation and characterization of semiquinol ...